2'/3.5' semi trailer kingpin

Specification:1. Kingpin size: 50(2’’),90( 3.5’’)2. Material: Pin mat-40Cr, Flange mat-steel 45#/20Crmnti, forged and heat treatment.3. Pin Thickness: 50-50.8mm for 2’’size; 89.5-90.5mm for 3.5’’size.4. Nut and Bolt: Mat-40Cr, 2’’size:10.90; 3.5’’size: 10.90 auto lock bolt, 8/12 holes with or without central hole.5.Package: Carton or customization6.Certification: ISO/TS16949DescriptionModel No.SpecificationSlide Plate Thickness(mm)50( 2")Welded series2"weldableBestn 50-082"82